Mail Collection Toolkit

Collect. Preserve. Search. Understand.

A modern, open source toolkit for making email a lasting part of the historical record.

Email has a history. Keep it

Collect, preserve, search, and understand email across old computers, backup drives, and exported accounts — while keeping the archive local and verifiable.

Preview release: alpha/beta software for testing.

Read the Windows installation instructions before installing. Older test-signed releases require trusting their included certificate. Windows installation instructions

macOS installers require Apple Silicon; Windows installers require x64. Choose your update stream in the application's Preferences panel.

Current release: v1.0.0a19 (preview)

Platform links and installation instructions

v1.0.0a19 (preview): macOS (.dmg) · Windows (.msixbundle) · Windows installation instructions

Read the README

Collect

Bring together mail from exports, old computers, and backup media.

Preserve

Keep original message data in an open, independently verifiable archive.

Search

Search one local collection across accounts, sources, and decades.

Understand

Use reports and finding-aid data to understand the collection as a whole.

Explore your collection

Find a message. Follow its story.

Search across years, people, subjects, and original folders. Read messages alongside their source information.

Explore searching
Search interface showing a synthetic archive collection, message results, and the selected message
The working search interface with a synthetic demonstration collection.

For Individuals

Consolidate supported email exports from old computers and backup drives, search across collections, and verify preserved messages.

Individual use case

For Archivists

Process donor collections with source provenance, native BagIt / Mailbag storage, finding-aid data, and MBOX handoff to ePADD.

Archivist use case

Open source · local first

Active development. Current release: v1.0.0a19

Email Collection Toolkit is open-source software for personal and institutional email collections.

Learn more

Explore the project.

Curation

Supported formats, archive design, reports, preservation, and planned work.

Community

Announcements, feature discussions, and project questions.

Release notes

Changes included in current and previous releases.